diff options
| -rw-r--r-- | src/backend/optimizer/path/equivclass.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/src/backend/optimizer/path/equivclass.c b/src/backend/optimizer/path/equivclass.c index 9408feacb8e..2e23ab673fa 100644 --- a/src/backend/optimizer/path/equivclass.c +++ b/src/backend/optimizer/path/equivclass.c @@ -566,12 +566,6 @@ get_eclass_for_sort_expr(PlannerInfo *root, expr = canonicalize_ec_expression(expr, opcintype, collation); /* - * Get the precise set of nullable relids appearing in the expression. - */ - expr_relids = pull_varnos((Node *) expr); - nullable_relids = bms_intersect(nullable_relids, expr_relids); - - /* * Scan through the existing EquivalenceClasses for a match */ foreach(lc1, root->eq_classes) @@ -645,6 +639,12 @@ get_eclass_for_sort_expr(PlannerInfo *root, if (newec->ec_has_volatile && sortref == 0) /* should not happen */ elog(ERROR, "volatile EquivalenceClass has no sortref"); + /* + * Get the precise set of nullable relids appearing in the expression. + */ + expr_relids = pull_varnos((Node *) expr); + nullable_relids = bms_intersect(nullable_relids, expr_relids); + newem = add_eq_member(newec, copyObject(expr), expr_relids, nullable_relids, false, opcintype); |